Malware Analysis Report

2025-01-02 07:21

Sample ID 240914-v9c6faxamg
Target 7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c
SHA256 7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c
Tags
floxif backdoor discovery persistence privilege_escalation trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c

Threat Level: Known bad

The file 7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery persistence privilege_escalation trojan upx

Floxif, Floodfix

Detects Floxif payload

Event Triggered Execution: AppInit DLLs

Loads dropped DLL

UPX packed file

ACProtect 1.3x - 1.4x DLL software

Enumerates connected drives

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-14 17:40

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-14 17:40

Reported

2024-09-14 17:43

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe"

Signatures

Floxif, Floodfix

backdoor trojan floxif

Detects Floxif payload

backdoor
Description Indicator Process Target
N/A N/A N/A N/A

Event Triggered Execution: AppInit DLLs

persistence privilege_escalation

ACProtect 1.3x - 1.4x DLL software

Description Indicator Process Target
N/A N/A N/A N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Common Files\System\symsrv.dll C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe

"C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 45.33.30.197:80 www.aieov.com tcp

Files

\Program Files\Common Files\System\symsrv.dll

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2112-3-0x0000000010000000-0x0000000010030000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\log.txt

MD5 722bad2c02a8da79130730c09ad57968
SHA1 e11bc4293a0a9cfe120703c060cbd94dfa703fc5
SHA256 c899197c3204838dc0024e7eb4a9e57c140b9af1345c8b0329ed24332a40ef53
SHA512 0109031109b24f3a350f6eedc893a51a2c2a30201cb8d8a78143d2477665614aeb16d21631b971c1be6f52df070832b1e6c0e198a3c9dede4b2bccdf4c50ebd2

memory/2112-62-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2112-61-0x00000000010E0000-0x000000000117A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-14 17:40

Reported

2024-09-14 17:43

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe"

Signatures

Floxif, Floodfix

backdoor trojan floxif

Detects Floxif payload

backdoor
Description Indicator Process Target
N/A N/A N/A N/A

ACProtect 1.3x - 1.4x DLL software

Description Indicator Process Target
N/A N/A N/A N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Common Files\System\symsrv.dll C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe

"C:\Users\Admin\AppData\Local\Temp\7b0170e43cae7800348df79ca10f39aba701362f67fb54c6069828a6a8abb43c.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 96.126.123.244:80 www.aieov.com tcp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 244.123.126.96.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

C:\Program Files\Common Files\System\symsrv.dll

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2736-2-0x0000000010000000-0x0000000010030000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\log.txt

MD5 cff0ff34e4f836a11391ec2ae6d20f69
SHA1 ff4e12e743a4fd7ebdfc27aae0ad85dde13bd349
SHA256 125bfd32b65717310b4367fe1c00e7fd04b4b236f065e8cc150d95e2fd7cd294
SHA512 520227b908d97a29e103a63e75166b30c2a1e4a96461db4a6370feb559667614ea8776c86ce365c30aa1a1d79eb97774dd367a3b2f8882bdffea0641dea07f0e

memory/2736-63-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2736-61-0x0000000000AF0000-0x0000000000B8A000-memory.dmp